Tapa Hard

Tapa Puzzle Rules:

• Black Cells: All black cells must be connected to form a single continuous region.

• 2x2 Restriction: No 2x2 area in the grid can be filled completely with black cells.

• Numbered Clues: Cells with numbers (clue cells) must remain empty. The number indicates the number of consecutive black cells in its eight surrounding cells.

• Multiple Number Clues: If there are multiple numbers in a clue cell, the black cell blocks represented by these numbers must be separated by at least one white cell.

• Question Marks: Question marks can replace numbers in clue cells and represent any non-zero positive integer.